Finding the Third Proportional to 153.56 and 238.22

Step by Step Solution

1. Step 1: Write the proportion equation
   153.56 : 238.22 = 238.22 : x
2. Step 2: Convert to fraction form
   153.56/238.22 = 238.22/x
3. Step 3: Cross multiply
   153.56x = 238.22 × 238.22
4. Step 4: Simplify right side
   153.56x = 56,748.17
5. Step 5: Solve for x
   x = 56,748.17/153.56
6. Step 6: Final answer
   x = 369.54